[Matsuyama Hayate] Nyotaika de Ecchi Kenshin!? Mirudake tte Itta no ni... 2 [Digital]
Young Champion Retsu Vol.03
(C81) [BOBCATERS (Hamon Ai, Matsuyama Seiji)] Yukiho Shinken (THE iDOLM@STER)
Young Champion Retsu Vol.17
Manga Bon 2012-06
Young Champion Retsu Vol.09
[Matsuyama Seiji] Onegai ♥ Anna-Sensei
[OKAWARI] Strawberry ☆ Factory + First Limited Edition CD(mp3)
Ano jigadori musume ga tsuini AV debyu Esa chica que se toma fotos finalmente tendra su debut AV
Young Champion Retsu Vol.13
[Matsuyama Hayate] Dokushin Ryou no Hame rare Omocha ~ Osoujichuu ni Guchi ~yogu choshi naide…! [Kanzenban]
Young Champion Retsu Vol.14
Hajimete no Furin Onsen
Eiken Adult Kirika ~With Love From the Milk Bags~
Nyotaika de Ecchi Kenshin!? Mirudake tte Itta no ni... 4 | Gender Bender Into Sexy Medical Examination! You said that you were only going to look... 4
[Matsuyama Seiji] Loli-gao de Kyonyuu na Okaa-san ga Boku no Hatsutaiken. [Digital]
Seiji_Matsuyama-Onegai_Anna_Sensei (5-8) small ver.
Young Champion Retsu Vol.15
[Matsuyama Seiji] 50-sai no Haha ga Erosugite Nakadashi Sex o Shite moratta Doutei no Boku [Digital]
[anthology] Breath Special Tokushuu Loli-Shota
Young Champion Retsu Vol.07 (2007-07-25 Zoukangou)
Gender Bender Into Sexy Medical Examination! You said that you were only going to look... 4
Otona no Eiken 〜 Shinonome Chiharu 26-sai 〜
Roshutsu Shoujo Yuugi San | Exhibitionist Girl's Play 3
Young Champion Retsu Vol.12 (2008-05-25 Zoukangou)
Eiken Rare Illust-shuu
Oppai de... Icchau no?
50歳パートの普通のおばちゃん……だがそれがいい
[Matsuyama Seiji] Eiken Makaizou 4 (Eiken) [Digital]
[Yottanchi (Yottan)] Oneshota
Young Comic 2008-09
Young Comic 2009-07
[Matsuyama Seiji] Oba x Boku - 41-sai Komochi no Shufu ga Doutei no Boku ni Tanomikomarete Shikatanaku...? Sex Shita Hanashi [Digital]
[Matsuyama Seiji] Azusa-san ga Ore no Yome de Eiken Mitai na Chou Bakunyuu dattara (THE iDOLM@STER) [Digital]
Kariyuku Mono
あけまして
[Matsuyama Seiji (Matsuyama Seiji)] Part no Misako-san Mune o Chirami Shite Kuru Shinjin-kun ni Fudeoroshi Shite Ageru no Ga o Suki
[Matsuyama Seiji] Eiken Makaizou (Eiken) [English] [Mongolfier] [Digital] [Incomplete]
[Matsuyama Seiji] Eiken Rensai Kaishi 10-shuunen Kinen Bon Kaiteiban Sai (Eiken) [Digital]
[Matsuyama Seiji (Matsuyama Seiji)] Oppai Momu? [Digital]
Eiken Makaizou 3
[Okina Flying Factory]PURURUN
[Tanuma Yuuichirou] LOVE ME (1993)
とくべつな毎日
[Yuzuponz (Akairo)] Ane no Pantsu de Onatte itara Futatabi Inma ga Yattekita [Digital]
Eiken Makaizou 2
30-Sai Imouto
Young Champion Retsu Vol.08 (2007-09-30 Zoukangou)
(C84) [Kaiki Nisshoku (Ayano Naoto)] R.O.D 8 -Rider or Die 8- (Fate/hollow ataraxia) [English] [Chocolate]
[Matsuyama Seiji] Eiken Rare Illust-shuu (Eiken) [Digital]
[Matsuyama Seiji] 50-sai no Haha ga Erosugite Nakadashi Sex o Shite Moratta Doutei no Boku. [English] [Fated Circle] [Digital]
Yarashite Kureru Gal Onee-chan.
Through The Wall
Young Comic 2008-07
Young Champion Retsu Vol.05
Young Comic 2008-08
Part no Misako-san Mune o Chirami Shite Kuru Shinjin-kun ni Fudeoroshi Shite Ageru no Ga o Suki
Young Champion Retsu Vol.04
56-sai Bust 256cm Danchizuma Ookiku Tareta Jukujo no Chibusa... Boku wa Kono Hito de Doutei o Sotsugyou Shita.
Young Champion Retsu Vol.16
(C85) [Matsuyama Seiji (Matsuyama Seiji)] Eiken Makaizou (Eiken) [Incomplete]
Seiji Matsuyama Onegai Anna Senensei
Young Comic 2008-10
Kinjo no Chuugakusei no Otokonoko ga Watashi no Mune o Chirachira Mite kuru node... Sex o Shite ageta Hanashi.
Young Champion Retsu Vol.06
(C91) [Matsuyama Seiji] Ura Eiken ZERO Remake (Eiken)
[Matsuyama Hayate] Gender Bender Into Sexy Medical Examination! You said that you were only going to look... 1 [English] [SachiKing] [Digital]
(C81) [BOBCATERS (Hamon Ai, Matsuyama Seiji)] Yukiho Shinken (THE iDOLM@STER) [English] [Tigoris Translates]
Otona no Eiken
Sexy Undercover Investigation! Don't spread it too much! Lewd TS Physical Examination
[Teruyo] 私たちの猥らな生活。
Oppai Momu?
[Matsuyama Seiji] Otona no Eiken Kirika ~Chibukuro yori Ai o Komete~ (Eiken) [Digital]
[Seiji Matsuyama] Ura Eiken ZERO (Eiken)
[Iogi Juichi] Exorsister Maria 1
Onegai Anna Sensei New Chapters
[Ribons Nights (Kyouno Aki)] Koisuru Matsuyama-san [Digital]
[Seiji Matsuyama] Bukkake Vol. 01
[杯面] 堕.续 [中國語]
[Matsuyama Seiji] Yarashite Kureru Gal Onee-chan. [Digital]
Zenra Eiken
[Matsuyama Seiji] Eiken Makaizou 2 (Eiken) [Digital]
[Isamura] Higeki no Heroine no Nichijou 2 [Chinese] [沒有漢化]
Tokura Misaka ni Mechakucha Shitemita
50-sai Bakunyuu Hitozuma Kounenki de Heikei shite Ninshin shinaku natta node... Nakadashi SEX Shihoudai.
[Matsuyama Seiji] Otona no Eiken Kirika ~Chibukuro yori Ai o Komete~ | Eiken Adult Kirika ~With Love From the Milk Bags~ (Eiken) [English] [Digital]
Eiken Rensai Kaishi 10-shuunen Kinen Bon Kaiteiban Sai
[Matsuyama Seiji] Eiken Makaizou 3 (Eiken) [Digital]
Nyotaika de Ecchi Kenshin!? Mirudake tte Itta no ni... 5
[Matsuyama Hayate] Nyotaika de Ecchi Kenshin!? Mirudake tte Itta no ni... 6 [Digital]